Douglass, F., & McKivigan, J. R. (2021). The Frederick Douglass Papers. Yale University Press.
芝加哥风格引文Douglass, Frederick, 与 John R. McKivigan. The Frederick Douglass Papers. New Haven: Yale University Press, 2021.
MLA引文Douglass, Frederick, 与 John R. McKivigan. The Frederick Douglass Papers. Yale University Press, 2021.
警告：这些引文格式不一定是100％准确.